A. Determine if the given describes a function or not. B. Determine the type of function for the following functions. 1. ((1. 8). (7. 5). (7. 2). (7. -1)] - 6. From fa, b. c. d} -> fa. b. c. d) : f (a) = b.f (b) = a.f (c) = c. f (d) = d* Function Not a function One-to-one Onto 2. Neither 5 10 20 15 -2 -2 -2 -2 Function 7. From (a. b. c. d) -> {a, b. c. d) : f (a) = b. f (b) = b. f (c) = d. f (d) = c* Not a function One-to-one Onto 3. Neither 8. From {a, b. c. d) -> fa. b. c. d) : f (a) = d, f (b) = b.f (c) = c.f (d) = d* One-to-one Function Onto Not a function Neither 9. From Z to Z: f (n) = n - 1* One-to-one Onto Neither Function Not a function 10. From Z to Z: f (n) = (n*2) + 1* 5, One-to-one Onto Neither Function Not a function